Slope Worksheets With Answers - Chapter 4.4 Parallel And Perpendicular Lines Page 8

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4-4 Parallel and Perpendicular Lines
( 2, 3) ,
The slope of the line with equation
. The line parallel to
. Use the point-slope form formula to find the equation for the parallel line.
(9, 12) , y = 13x
4
The slope of the line with equation y = 13x
4 is 13. The line parallel to y = 13x
4 has the same slope, 13.
ABCD
trapezoid? Explain.
Use the graph to determine the slop of each segment of the quadrilateral. The line containing
and the line
containing
(up 1 unit, right 3 units). Therefore one pair of sides is parallel. The slope of
is undefined and the slope of
, so they are not parallel. ABCD is a trapezoid.
CDEF is a kite. Are the diagonals of the kite perpendicular? Explain your reasoning.
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